常用命令使用
/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -aALL [查raid级别]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aALL [查raid卡信息]
/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aALL [查看硬盘信息]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -aAll [查看电池信息]
/opt/MegaRAID/MegaCli/MegaCli64 -FwTermLog -Dsply -aALL [查看raid卡日志]
/opt/MegaRAID/MegaCli/MegaCli64 -adpCount [显示适配器个数]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpGetTime –aALL [显示适配器时间]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpAllInfo -aAll [显示所有适配器信息]
/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -LALL -aAll [显示所有逻辑磁盘组信息]
/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aAll [显示所有的物理信息]、
/opt/MegaRAID/MegaCli/MegaCli64 -PdLocate -start -physdrv[252:2] -a0  [点亮指定硬盘（定位）]
/opt/MegaRAID/MegaCli/MegaCli64 -CfgForeign -Clear -a0  [清除Foreign状态]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL |grep 'ChargerStatus' [查看充电状态]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL[显示BBU状态信息]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuCapacityInfo -aALL[显示BBU容量信息]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuDesignInfo -aALL [显示BBU设计参数]
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuProperties -aALL [显示当前BBU属性]
/opt/MegaRAID/MegaCli/MegaCli64 -cfgdsply -aALL [显示Raid卡型号，Raid设置，Disk相关信息]
/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aAll -NoLog  [查看所有硬盘的状态]
/opt/MegaRAID/MegaCli/MegaCli64 -LdPdInfo -aAll -NoLog [查看所有Virtual Disk的状态]
磁带状态的变化，从拔盘，到插盘的过程中。
Device |Normal|Damage|Rebuild|Normal
Virtual Drive |Optimal|Degraded|Degraded|Optimal
Physical Drive |Online|Failed –> Unconfigured|Rebuild|Online
查看磁盘缓存策略
/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L0 -a0
/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -L1 -a0
/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -a0
/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -Cache -LALL -aALL
/opt/MegaRAID/MegaCli/MegaCli64 -LDGetProp -DskCache -LALL -aALL
设置磁盘缓存策略
缓存策略解释

WT (Write through
WB (Write back)
NORA (No read ahead)
RA (Read ahead)
ADRA (Adaptive read ahead)
Cached
Direct
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WT|WB|NORA|RA|ADRA -L0 -a0
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -Cached|-Direct -L0 -a0 enable / disable disk cache
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -EnDskCache|-DisDskCache -L0 -a0
Raid 管理
RAID Level对应关系
Raid信息	Raid级别
RAID Level : Primary-1, Secondary-0, RAID Level Qualifier-0	RAID 1
RAID Level : Primary-0, Secondary-0, RAID Level Qualifier-0	RAID 0
RAID Level : Primary-5, Secondary-0, RAID Level Qualifier-3	RAID 5
RAID Level : Primary-1, Secondary-3, RAID Level Qualifier-0	RAID 10
创建一个 raid5 阵列，由物理盘 2,3,4 构成，该阵列的热备盘是物理盘 5
/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -Hsp[1:5] -a0
创建阵列，不指定热备
/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdAdd -r5 [1:2,1:3,1:4] WB Direct -a0
查看RAID阵列中掉线的盘
/opt/MegaRAID/MegaCli/MegaCli64 -pdgetmissing -a0
删除阵列
/opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L1 -a0
替换坏掉的模块
/opt/MegaRAID/MegaCli/MegaCli64 -pdreplacemissing -physdrv[12:10] -Array5 -row0 -a0
在线添加磁盘
/opt/MegaRAID/MegaCli/MegaCli64 -LDRecon -Start -r5 -Add -PhysDrv[1:4] -L1 -a0
阵列创建完后，会有一个初始化同步块的过程，可以看看其进度。
/opt/MegaRAID/MegaCli/MegaCli64 -LDInit -ShowProg -LALL -aALL 或者以动态可视化文字界面显示
/opt/MegaRAID/MegaCli/MegaCli64 -LDInit -ProgDsply -LALL -aALL
查看阵列后台初始化进度
/opt/MegaRAID/MegaCli/MegaCli64 -LDBI -ShowProg -LALL -aALL
或者以动态可视化文字界面显示

/opt/MegaRAID/MegaCli/MegaCli64 -LDBI -ProgDsply -LALL -aALL
指定第 5 块盘作为全局热备
/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0
指定为某个阵列的专用热备
/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Set [-Dedicated [-Array1]] [-EnclAffinity] [-nonRevertible] -PhysDrv[1:5] -a0
删除全局热备
/opt/MegaRAID/MegaCli/MegaCli64 -PDHSP -Rmv -PhysDrv[1:5] -a0
将某块物理盘下线/上线
/opt/MegaRAID/MegaCli/MegaCli64 -PDOffline -PhysDrv [1:4] -a0
/opt/MegaRAID/MegaCli/MegaCli64 -PDOnline -PhysDrv [1:4] -a0
手动开启 rebuid
/opt/MegaRAID/MegaCli/MegaCli64 -pdrbld -start -physdrv[12:10] -a0
关闭 rebuild
/opt/MegaRAID/MegaCli/MegaCli64 -AdpAutoRbld -Dsbl -a0
设置rebuild的速率
/opt/MegaRAID/MegaCli/MegaCli64 -AdpSetProp RebuildRate -30 -a0
查看物理磁盘重建进度 Rebuild
/opt/MegaRAID/MegaCli/MegaCli64 -PDRbld -ShowProg -PhysDrv [1:5] -a0
或者以动态可视化文字界面显示

/opt/MegaRAID/MegaCli/MegaCli64 -PDRbld -ProgDsply -PhysDrv [1:5] -a0
查看 ES
/opt/MegaRAID/MegaCli/MegaCli64 -PDList -aAll -NoLog | grep -Ei "(enclosure|slot)"
raid 电池设置相关
查看电池状态信息(Display BBU Status Information)

MegaCli -AdpBbuCmd -GetBbuStatus -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuStatus -aALL
查看电池容量（Display BBU Capacity Information）

MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuCapacityInfo –aALL
查看电池设计参数(Display BBU Design Parameters)

MegaCli -AdpBbuCmd -GetBbuDesignInfo -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuDesignInfo –aALL
查看电池属性（Display Current BBU Properties）

MegaCli -AdpBbuCmd -GetBbuProperties -aN|-a0,1,2|-aALL
MegaCli -AdpBbuCmd -GetBbuProperties –aALL
设置电池为学习模式为循环模式（Start BBU Learning Cycle）

Description Starts the learning cycle on the BBU.
No parameter is needed for this option.
MegaCli -AdpBbuCmd -BbuLearn -aN|-a0,1,2|-aALL
设置磁盘的缓存模式和访问方式 （Change Virtual Disk Cache and Access Parameters）

Description Allows you to change the following virtual disk parameters:
-WT (Write through), WB (Write back): Selects write policy.
-NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy.
-Cached, -Direct: Selects cache policy.
-RW, -RO, Blocked: Selects access policy.
-EnDskCache: Enables disk cache.
-DisDskCache: Disables disk cache.
MegaCli -LDSetProp { WT | WB|NORA |RA | ADRA|-Cached|Direct} |
{-RW|RO|Blocked} |
{-Name[string]} |
{-EnDskCache|DisDskCache} –Lx |
-L0,1,2|-Lall -aN|-a0,1,2|-aALL
MegaCli -LDSetProp WT -L0 -a0
显示磁盘缓存和访问方式（Display Virtual Disk Cache and Access Parameters）

MegaCli -LDGetProp -Cache | -Access | -Name | -DskCache -Lx|-L0,1,2|
-Lall -aN|-a0,1,2|-aALL
Displays the cache and access policies of the virtual disk(s):
-WT (Write through), WB (Write back): Selects write policy.
-NORA (No read ahead), RA (Read ahead), ADRA (Adaptive read ahead): Selects read policy.
-Cache, -Cached, Direct: Displays cache policy.
-Access, -RW, -RO, Blocked: Displays access policy.
-DskCache: Displays physical disk cache policy.
Megaraid 必知必会 使用 LSI 的 megaraid 可以对 raid 进行有效监控。别的厂商比如 HP,IBM 也有自己的 raid API

MegaCli -ldinfo -lall -aall 查询raid级别，磁盘数量，容量，条带大小。
MegaCli -cfgdsply -aALL |grep Policy 查询控制器cache策略
MegaCli -LDSetProp WB -L0 -a0 设置write back功能
MegaCli -LDSetProp CachedBadBBU -L0 -a0 设置即使电池坏了还是保持WB功能
MegaCli -AdpBbuCmd -BbuLearn a0 手动充电
MegaCli -FwTermLog -Dsply -aALL 查询日志
MegaCli -adpCount 显示适配器个数
显示所有适配器信息
MegaCli -AdpAllInfo -aAll
Critical Disks : 0
Failed Disks : 0
显示所有逻辑磁盘组信息

MegaCli -LDInfo -LALL -aAll
显示所有的物理信息

MegaCli -PDList -aAll
Media Error Count: 0
Other Error Count: 0
查看充电状态
MegaCli -AdpBbuCmd -GetBbuStatus -aALL
Learn Cycle Requested : No
Fully Charged : Yes
显示BBU(后备电池)状态信息： MegaCli -AdpBbuCmd -GetBbuStatus -aALL
显示BBU容量信息： MegaCli -AdpBbuCmd -GetBbuCapacityInfo -aALL
显示BBU设计参数： MegaCli -AdpBbuCmd -GetBbuDesignInfo -aALL
显示当前BBU属性： MegaCli -AdpBbuCmd -GetBbuProperties -aALL
显示Raid卡型号，Raid设置，Disk相关信息： MegaCli -cfgdsply -aALL
查看Cache 策略设置： MegaCli -cfgdsply -aALL |grep -i Policy Current Cache Policy: WriteBack, ReadAheadNone, Direct, Write Cache OK if Bad BBU
查看充电进度百分比： MegaCli -AdpBbuCmd -GetBbuStatus -aALL


############################### https://segmentfault.com/a/1190000008780600 ########################################


手动创建 raid
##删除raid
root@scaler:~# /opt/MegaRAID/MegaCli/MegaCli64 -CfgLdDel -L2 -A0

##创建raid
root@scaler:~# /opt/MegaRAID/MegaCli/MegaCli64 CfgLDAdd -r5 [41:5,41:6,41:7,41:8,41:9,41:10,41:11,41:12,41:13,41:14] -strpsz128 -A0 
raid 卡日志，保存到文件
/opt/MegaRAID/MegaCli/MegaCli64 -AdpEventLog -GetEvents -f raid.envent.log -a0

新加入硬盘，重新插拔硬盘
清除foreign key 
/opt/MegaRAID/MegaCli/MegaCli64 -CfgForeign -Scan -aALL 
/opt/MegaRAID/MegaCli/MegaCli64 -CfgForeign -Clear -aALL

如何查看和清除 raid的 cache ##删除，重建raid时可能需要
/opt/MegaRAID/MegaCli/MegaCli64 -GetPreservedCacheList -aALL 
/opt/MegaRAID/MegaCli/MegaCli64 -DiscardPreservedCache -L7 -aall


/opt/MegaRAID/MegaCli/MegaCli64 -PDMakeGood -PhysDrv[8:1] -a0
/opt/MegaRAID/MegaCli/MegaCli64 -CfgForeign -import -a0
常用检查 磁盘erro
/opt/MegaRAID/MegaCli/MegaCli64 -pdlist -a0|grep -Ei "enc|Slot Number|Firmware stat|media error |other error"

raid一致性检查
禁用一直性 检查
/opt/MegaRAID/MegaCli/MegaCli64 -AdpCcSched -Dsbl -Aall
启用一致性检查，
/opt/MegaRAID/MegaCli/MegaCli64 -AdpCcSched -ModeConc -Aall
查看一直性检查 信息
/opt/MegaRAID/MegaCli/MegaCli64 -AdpCcSched -info -Aall
在pdlist 中可以看到 硬盘类型
Media Type: Hard Disk Device，，如果是固态盘，会显示 solid state device
PD Type: SAS，，这个应该可以判断是 sata盘 还是sas盘。。

flush raid cache
/opt/MegaRAID/MegaCli/MegaCli64 -AdpCacheFlush -Aall

闪烁硬盘
MegaCli -PdLocate -start -physdrv [E:S] -aALL

write back 只对写有用。
BBu状态 会影响到 write back 模式 是否开启。

/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -Aall
对某一个具体的 logic disk 查看 all 改成 对应0，1,

物理盘，逻辑盘一起看
megacli -LdPdInfo -aALL

关闭raid组的告警
-AdpSetProp AlarmDsbl -aALL

/opt/MegaRAID/MegaCli/MegaCli64 ldpdinfo -aall |egrep "Slot |Firmware"

/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -aAll

检查BBBU 状态，期望 optima
root@host185:~# /opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -aAll |grep -Ei battery

检查cache policy
/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -Aall
Current Cache Policy 期望Current Cache Policy No Write Cache if Bad BBU
Disk Cache Policy 期望 disable

/opt/MegaRAID/MegaCli/MegaCli64 -LDInfo -Lall -aAll

设置cache
./MegaCli -LDSetProp NOCachedBadBBU -Lall -aALL
./MegaCli -LDSetProp CachedBadBBU -Lall -aALL

检查RAId 初始化进度
/opt/MegaRAID/MegaCli/MegaCli64 -ldinfo -lall -a0

raid 跟换硬盘后，判断状态
 1417  /opt/MegaRAID/MegaCli/MegaCli64 -ldinfo -lall -a0|less
 1418  /opt/MegaRAID/MegaCli/MegaCli64 -ldpdinfo -a0|less
查看每个物理硬盘状态
 1419  /opt/MegaRAID/MegaCli/MegaCli64 -pdlist -a0|egrep "Slot Number|Firmware stat"
write through 改成 write back
/opt/MegaRAID/MegaCli/MegaCli64 LDSetProp WB -Lall -Aall
##更改1个logic disk

 /opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WB -L3 -A0
 /opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp WB -L4 -A0
查看电池状态
/opt/MegaRAID/MegaCli/MegaCli64 -AdpBbuCmd -GetBbuStatus -aALL
-AdpBbuCmd -GetBbuCapacityInfo －A0
换硬盘 ，查看rebuild进度
/opt/MegaRAID/MegaCli/MegaCli64 -PDRbld -showprog -physDrv [40:7] -a0

关闭 读的cache
/opt/MegaRAID/MegaCli/MegaCli64 LDSetProp Direct -Lall -Aall

关闭 disk cache
/opt/MegaRAID/MegaCli/MegaCli64 -LDSetProp -DisDskCache -Lall -Aall